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util/intelmetool: Add bootguard information dump support

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With this implementation it's possible to detect the state
of bootguard in intel based systems. Currently it's WIP and
in a testphase. Handle it with care!

Changes done:
* Add support for reading msr
* Read ME firmware version
* Print bootguard state for ME > 9.1
* Make argument -s legacy
* Add argument -b for bootguard (and ME) dumping
* Add argument -m for ME dumping
* Opt out early if CPU is non Intel

Change-Id: Ifeec8e20fa8efc35d7db4c6a84be1f118dccfc4a
Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org>
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/16328
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
This commit is contained in:
Philipp Deppenwiese
2016-08-26 02:10:51 +02:00
committed by Patrick Rudolph
parent 5e9dc37818
commit 73add175cd
7 changed files with 259 additions and 33 deletions
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14
util/intelmetool/me.c
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@@ -22,9 +22,9 @@
#include <assert.h>
#include <unistd.h>
#include "intelmetool.h"
#include "me.h"
#include "mmap.h"
#include "intelmetool.h"
#define read32(addr, off) ( *((uint32_t *) (addr + off)) )
#define write32(addr, off, val) ( *((uint32_t *) (addr + off)) = val)
@@ -378,7 +378,7 @@ static int mkhi_end_of_post(void)
*/
/* Get ME firmware version */
int mkhi_get_fw_version(void)
int mkhi_get_fw_version(int *major, int *minor)
{
uint32_t data = 0;
struct me_fw_version version = {0};
@@ -420,15 +420,13 @@ int mkhi_get_fw_version(void)
printf("ME: Firmware Version %u.%u (code)\n\n"
version.code_major, version.code_minor);
#endif
if (major)
*major = version.code_major;
if (minor)
*minor = version.code_minor;
return 0;
}
static inline void print_cap(const char *name, int state)
{
printf("ME Capability: %-30s : %s\n",
name, state ? CRED "ON" RESET : CGRN "OFF" RESET);
}
/* Get ME Firmware Capabilities */
int mkhi_get_fwcaps(void)
{